If I understand your problem correctly, it sounds like you just need to resize the column width or the size of the object. In AJAX, sometimes these columns are redendered wider than the desktop so try to shrink them a little more to allow for this formatting. Alternatively, you can always just make the object a couple points wider and this should fix it as well.

Size-to-date option is great but it will still only allow the object to be as big as the settings allow. For example it will not stretch wider than 500 if that is the object setting. If you are using size-to-data then I would recommend increasing the object width.

this is a known bug with id 37495 for version 10. I am not sure if you are running version 10, if you are running a different version then please contct support in order for us to look into your problem,